Post Utme Biology Past Questions and Answers

Question 431:

Which of the following substances has the highest amount of energy in joules per unit weight?

A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins

Question 432:

Which of the following statements about ribosomes is not correct?
Ribosomes ____________

A. Are responsible for protein synthesis
B. Contain a large amount of ribonucleic acid <RNA>
C. Release enzymes for the digestion of bacteria
D. Are attached to endoplasmic reticulum

Question 433:

A bacterial cell differs from eukaryotic cell by having no ____________

A. Cell wall
B. Nuclear membrane
C. Nuclear material
D. Cell membrane

Question 434:

Which of the following is a common excretory product in both plants and animals?

A. Urine
B. Oxygen
C. Mineral salt
D. Carbon dioxide

Question 435:

Which of the following structures of the human body provides the best surface for diffusion?

A. Skin
B. Stomach
C. Alveolus
D. Oesophagus